1
|
Alcantara da Silva JV, Ispada J, Nociti RP, da Fonseca Junior AM, de Lima CB, Dos Santos EC, Chiaratti MR, Milazzotto MP. The central role of pyruvate metabolism on the epigenetic maturation and transcriptional profile of bovine oocytes. Reproduction 2024; 167:e230181. [PMID: 38271822 DOI: 10.1530/rep-23-0181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 01/23/2024] [Indexed: 01/27/2024]
Abstract
In brief Pyruvate metabolism is one of the main metabolic pathways during oocyte maturation. This study demonstrates that pyruvate metabolism also regulates the epigenetic and molecular maturation in bovine oocytes. Abstract Pyruvate, the final product of glycolysis, undergoes conversion into acetyl-CoA within the mitochondria of oocytes, serving as a primary fuel source for the tricarboxylic acid (TCA) cycle. The citrate generated in the TCA cycle can be transported to the cytoplasm and converted back into acetyl-CoA. This acetyl-CoA can either fuel lipid synthesis or act as a substrate for histone acetylation. This study aimed to investigate how pyruvate metabolism influences lysine 9 histone 3 acetylation (H3K9ac) dynamics and RNA transcription in bovine oocytes during in vitro maturation (IVM). Bovine cumulus-oocyte complexes were cultured in vitro for 24 h, considering three experimental groups: Control (IVM medium only), DCA (IVM supplemented with sodium dichloroacetate, a stimulant of pyruvate oxidation into acetyl-CoA), or IA (IVM supplemented with sodium iodoacetate, a glycolysis inhibitor). The results revealed significant alterations in oocyte metabolism in both treatments, promoting the utilization of lipids as an energy source. These changes during IVM affected the dynamics of H3K9ac, subsequently influencing the oocyte's transcriptional activity. In the DCA and IA groups, a total of 148 and 356 differentially expressed genes were identified, respectively, compared to the control group. These findings suggest that modifications in pyruvate metabolism trigger the activation of metabolic pathways, particularly lipid metabolism, changing acetyl-CoA availability and H3K9ac levels, ultimately impacting the mRNA content of in vitro matured bovine oocytes.
Collapse
Affiliation(s)
- João Vitor Alcantara da Silva
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| | - Jessica Ispada
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| | - Ricardo Perecin Nociti
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, SP, Brazil
| | - Aldcejam Martins da Fonseca Junior
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| | | | - Erika Cristina Dos Santos
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| | | | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| |
Collapse
|
2
|
de Lima CB, Milazzotto MP, Vireque AA, Joaquim DC, Sobreira TJP, Ferreira CR. Impact of Extraction Methods and Transportation Conditions on Lipid Profiles of Bovine Oocytes. Reprod Sci 2024:10.1007/s43032-024-01524-9. [PMID: 38561471 DOI: 10.1007/s43032-024-01524-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Lipids play numerous pivotal physiological roles in mammalian reproduction, being indispensable for oocyte competence acquisition and post-fertilization embryonic development. Profiling lipids in minute samples, such as oocytes, presents challenges but has been accomplished through mass spectrometry technologies like Multiple Reaction Monitoring (MRM) profiling. With the dual objectives of simplifying workflow and examining the influence of preanalytical conditions, we assessed whether transportation at room temperature affects the lipid profile of bovine oocytes. To this end, samples were prepared using either monophasic (methanol only) or biphasic liquid extraction protocols (Bligh & Dyer method) and transported either on dry ice or at room temperature inside sealed-vacuum packages to prevent lipid oxidation. Subsequently, employing a comprehensive method, we screened a list of 316 MRMs from 10 different lipid subclasses in oocyte lipid extracts. Principal Component Analysis (PCA) revealed similar lipid profiles concerning temperature during transportation, whereas clear differentiation among samples was observed based on the lipid extraction method. Univariate analysis indicated that the one-phase methanol extraction resulted in higher relative abundances of phospholipids, except for phosphatidylserines. Conversely, the Bligh & Dyer extraction favored the detection of neutral intracellular lipids (triacylglycerols, free fatty acids, cholesteryl esters, and acyl-carnitines). Consequently, lipid recovery was directly correlated with the polarity of lipid class and the extraction method. Regarding transportation temperature, phosphatidylethanolamine, triacylglycerol, and free fatty acids exhibited lower abundances when samples were transported at room temperature. Based on multivariate and univariate analyses, we conclude that if samples undergo the same lipid extraction protocol and are transported in the same batch at room temperature inside vacuum-sealed bags, it is feasible to analyze lipid extracts of bovine oocytes and still obtain informative lipid profiling results.
Collapse
Affiliation(s)
- Camila Bruna de Lima
- Department of Animal Sciences, Université Laval, Québec, QC, Canada
- Center of Natural and Human Sciences, Universidade Federal Do ABC, Santo André, São Paulo, Brazil
- , Ville de Québec, Canada
| | | | - Alessandra Aparecida Vireque
- Invitra, Assisted Reproductive Technologies Ltd., Supera Innovation and Technology Park, Ribeirão Preto, SP, 14056-680, Brazil
| | - Daniel Carlino Joaquim
- Invitra, Assisted Reproductive Technologies Ltd., Supera Innovation and Technology Park, Ribeirão Preto, SP, 14056-680, Brazil
| | - Tiago Jose Paschoal Sobreira
- Center for Analytical Instrumentation Development, Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
| | - Christina Ramires Ferreira
- Center for Analytical Instrumentation Development, Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
- Bindley Bioscience Center, Purdue University, West Lafayette, IN, 47907, USA
| |
Collapse
|
3
|
Fontes PK, Dos Santos EC, da Rocha HC, de Lima CB, Milazzotto MP. Metabolic stressful environment drives epigenetic modifications in oviduct epithelial cells. Theriogenology 2024; 215:151-157. [PMID: 38070214 DOI: 10.1016/j.theriogenology.2023.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/22/2023] [Accepted: 11/22/2023] [Indexed: 01/06/2024]
Abstract
The oviduct provides a suitable microenvironment from the gametes' final maturation until initial embryo development. Dynamic functional changes are observed in the oviduct cells, mainly controlled by steroid hormones and well-orchestrated during the estrous cycle. However, based on the roles played by the oviduct, additional layers of complexity might be present in its regulatory process. There is a cellular process that includes metabolic adaptation that can guide molecular modifications. This process is known as metaboloepigenetics. Therefore, we aimed to better understand how this crosstalk occurs in oviductal epithelial cells (OEC). Due to limited in situ access to the oviduct, we used the primary in vitro cell culture as a culture model and glucose as a metabolic disturbed factor. For that, cells derived from the oviductal epithelial layer were collected from cows at either follicular or luteal stages (n = 4 animals per group). They were cultured on a monolayer culture system under normoglycemic (2.7 mM glucose) or hyperglycemic conditions (27 mM glucose). On day five of culture, attached cells were submitted to analysis of mitochondrial metabolism (mitochondrial membrane potential - MMP) and epigenetics markers (5- methylcytosine - 5 mC and histone 3 lysine 9 acetylation - H3K9ac). Moreover, the culture media were submitted to the metabolites analysis profile by Raman spectrometry. Data were analyzed considering the effect of glucose level (normoglycemic vs. hyperglycemic), stages when OEC were harvested (follicular vs. luteal), and their interaction (glucose level * cycle stage) by two-way ANOVA. As a result, the high glucose level decreased the H3K9ac and MMP levels but did not affect the 5 mC. Regardless of the metabolic profile of the culture media, the glucose level was the only factor that changed the Raman shifts abundance. Although this present study evaluated oviductal epithelial cells after being submitted to an in vitro monolayer culture system, which is known to lead to cell dedifferentiation, yet, these results provide evidence of a relationship between epigenetic reprogramming and energy metabolism under these cell culture conditions. In conclusion, the levels of metabolites in culture media may be crucial for cellular function and differentiation, meaning that it should be considered in studies culturing oviductal cells.
Collapse
Affiliation(s)
- Patricia Kubo Fontes
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo André, São Paulo, Brazil
| | - Erika Cristina Dos Santos
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo André, São Paulo, Brazil
| | - Heloise Cale da Rocha
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo André, São Paulo, Brazil
| | - Camila Bruna de Lima
- Département des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec, Canada
| | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo André, São Paulo, Brazil.
| |
Collapse
|
4
|
de Lima CB, Milazzotto MP, Vireque AA, Joaquim DC, Sobreira TJP, Ferreira CR. Effect of lipid extraction and room temperature transportation of bovine oocytes determined by MRM profiling. Res Sq 2023:rs.3.rs-3788683. [PMID: 38196623 PMCID: PMC10775384 DOI: 10.21203/rs.3.rs-3788683/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Lipids play many important physiological roles in mammalian reproduction, being essential for the acquisition of oocyte competence and post-fertilization embryonic development. Lipid profiling in samples of minute size, such as oocytes, is challenging but has been achieved by mass spectrometry technologies such as multiple reaction monitoring (MRM) profiling. With the goals of further simplifying sample workflow and investigating the influence of pre-analytical conditions, we have evaluated how different extraction methods and transportation of lipid extracts in vacuum and at room temperature impacted the lipid profile of bovine oocytes. Using a comprehensive method, 316 MRMs associated with lipids of 10 different classes were screened in oocyte lipid extracts prepared by 2 extraction methods (one-step methanol addition or Bligh and Dyer) and transporting them in dry ice or at room temperature inside vacuum packages. No changes in the multivariate analysis (PCA) were noticeable due to transportation temperature, while lipid profiles were more affected by the lipid extraction protocol. Sample extraction using pure methanol favored the detection of phospholipids uniformly, while Bligh and Dyer favored the detection of neutral intracellular lipids. Triacylglycerol lipids and free fatty acids yielded decreased abundances when samples were transported at room temperature. We conclude that if samples are submitted to the same lipid extraction protocol and same transportation batch at room temperature coupled with vacuum conditions it is possible to analyze lipid extracts of bovine oocytes and still obtain informative lipid profiling results.
Collapse
|
5
|
de Lima CB, Martin H, Pecora Milazzotto M, Sirard MA. Genome-wide methylation profile of mitochondrial DNA across bovine preimplantation development. Epigenetics 2023; 18:2241010. [PMID: 37523633 PMCID: PMC10392754 DOI: 10.1080/15592294.2023.2241010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/29/2023] [Accepted: 07/11/2023] [Indexed: 08/02/2023] Open
Abstract
This study characterized variations in the methylation profile of mitochondrial DNA (mtDNA) during initial bovine embryo development and correlated the presence of methylation with mtDNA transcription. Bovine oocytes were obtained from abattoir ovaries and submitted to in vitro culture procedures. Oocytes and embryos were collected at various stages (immature oocyte, IM; mature oocyte, MII; zygote, ZY; 4-cells, 4C; 16-cells, 16C and blastocysts, BL). Total DNA (including mtDNA) was used for Whole Genome Enzymatic Methyl Sequencing and for quantification of mtDNA copy number. Extracted RNA was used for quantification of mitochondrial transcripts using Droplet Digital PCR. We selected ND6, CYTB, tRNA-Phe and tRNA-Gln based on their location in the mitochondrial genome, functionality and/or previous literature associating these regions with cytosine methylation. The number of mtDNA copies per oocyte/embryo was found to be similar, while methylation levels in mtDNA varied among stages. Higher total methylation levels were found mainly at 4C and 16C. In specific gene regions, higher methylation levels were also observed at 4C and 16C (ND6, CYTB and tRNA-Phe), as well as an inverse correlation with the quantity of transcripts for these regions. This is a first description of epigenetic changes occurring in mtDNA during early embryonic development. Our results indicate that methylation might regulate the mtDNA transcription at a local level, particularly around the time of embryonic genome activation.
Collapse
Affiliation(s)
- Camila Bruna de Lima
- Centre de Recherche En Reproduction, Développement Et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Université Laval, Québec, QC, Canada
- Universidade Federal Do ABC, Centro de Ciências Naturais E Humanas, Santo André, SP, Brazil
| | - Hélène Martin
- Centre de Recherche En Reproduction, Développement Et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Université Laval, Québec, QC, Canada
| | - Marcella Pecora Milazzotto
- Centre de Recherche En Reproduction, Développement Et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Université Laval, Québec, QC, Canada
- Universidade Federal Do ABC, Centro de Ciências Naturais E Humanas, Santo André, SP, Brazil
| | - Marc-André Sirard
- Centre de Recherche En Reproduction, Développement Et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Université Laval, Québec, QC, Canada
| |
Collapse
|
6
|
da Fonseca Junior AM, Ispada J, Dos Santos EC, de Lima CB, da Silva JVA, Paulson E, Goszczynski DE, Goissis MD, Ross PJ, Milazzotto MP. Adaptative response to changes in pyruvate metabolism on the epigenetic landscapes and transcriptomics of bovine embryos. Sci Rep 2023; 13:11504. [PMID: 37460590 DOI: 10.1038/s41598-023-38686-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 07/12/2023] [Indexed: 07/20/2023] Open
Abstract
The epigenetic reprogramming that occurs during the earliest stages of embryonic development has been described as crucial for the initial events of cell specification and differentiation. Recently, the metabolic status of the embryo has gained attention as one of the main factors coordinating epigenetic events. In this work, we investigate the link between pyruvate metabolism and epigenetic regulation by culturing bovine embryos from day 5 in the presence of dichloroacetate (DCA), a pyruvate analog that increases the pyruvate to acetyl-CoA conversion, and iodoacetate (IA), which inhibits the glyceraldehyde-3-phosphate dehydrogenase (GAPDH), leading to glycolysis inhibition. After 8 h of incubation, both DCA and IA-derived embryos presented higher mitochondrial membrane potential. Nevertheless, in both cases, lower levels of acetyl-CoA, ATP-citrate lyase and mitochondrial membrane potential were found in blastocysts, suggesting an adaptative metabolic response, especially in the DCA group. The metabolic alteration found in blastocysts led to changes in the global pattern of H3K9 and H3K27 acetylation and H3K27 trimethylation. Transcriptome analysis revealed that such alterations resulted in molecular differences mainly associated to metabolic processes, establishment of epigenetic marks, control of gene expression and cell cycle. The latter was further confirmed by the alteration of total cell number and cell differentiation in both groups when compared to the control. These results corroborate previous evidence of the relationship between the energy metabolism and the epigenetic reprogramming in preimplantation bovine embryos, reinforcing that the culture system is decisive for precise epigenetic reprogramming, with consequences for the molecular control and differentiation of cells.
Collapse
Affiliation(s)
- Aldcejam Martins da Fonseca Junior
- Federal University of ABC - Center for Natural and Human Sciences, Av. Dos Estados, 5001, Bairro Santa Terezinha, Bloco A, Lab 504-3, Santo André, SP, CEP: 09210-580, Brazil
| | - Jessica Ispada
- Federal University of ABC - Center for Natural and Human Sciences, Av. Dos Estados, 5001, Bairro Santa Terezinha, Bloco A, Lab 504-3, Santo André, SP, CEP: 09210-580, Brazil
| | - Erika Cristina Dos Santos
- Federal University of ABC - Center for Natural and Human Sciences, Av. Dos Estados, 5001, Bairro Santa Terezinha, Bloco A, Lab 504-3, Santo André, SP, CEP: 09210-580, Brazil
| | | | - João Vitor Alcantara da Silva
- Federal University of ABC - Center for Natural and Human Sciences, Av. Dos Estados, 5001, Bairro Santa Terezinha, Bloco A, Lab 504-3, Santo André, SP, CEP: 09210-580, Brazil
| | - Erika Paulson
- Department of Animal Science, University of California, UC - Davis, Davis, USA
| | | | | | - Pablo Juan Ross
- Department of Animal Science, University of California, UC - Davis, Davis, USA
| | - Marcella Pecora Milazzotto
- Federal University of ABC - Center for Natural and Human Sciences, Av. Dos Estados, 5001, Bairro Santa Terezinha, Bloco A, Lab 504-3, Santo André, SP, CEP: 09210-580, Brazil.
| |
Collapse
|
7
|
de Lima CB, Barbosa GZ, Ispada J, Dos Santos EC, Milazzotto MP. Lipid availability during in vitro maturation alters oocyte lipid content and blastocyst development and metabolism. Reprod Domest Anim 2023. [PMID: 37120750 DOI: 10.1111/rda.14367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/14/2023] [Accepted: 04/25/2023] [Indexed: 05/01/2023]
Abstract
Lipids play a crucial role in various biological functions, including membrane composition, energy storage, cell signaling, and metabolic and epigenetic processes. Abnormal lipid accumulation and metabolism during in vitro maturation (IVM) of oocytes has been linked to the use of fetal bovine serum (FBS), even though it provides several beneficial molecules, contributing to the oocyte competence. Delipidating agents have been used to mitigate these deleterious effects, but they can have adverse effects on embryonic development. In this study, we explored how lipids present in fetal bovine serum (FBS) can impact the composition of oocytes and their resulting blastocysts in vitro. For that, we used organic solvents to separate the polar and nonpolar (lipid enriched) phase of FBS. Oocytes were in vitro matured in the presence of 10% whole FBS (control), 10% FBS plus 10% nonpolar lipids (lipid enriched - OL) or 10% polar lipids only (partially delipidated - ODL). After 24 hours, part of the matured oocytes was collected and those remaining in each group underwent in vitro fertilization (IVF) and culture (IVC) under the same conditions and expanded blastocysts were collected at day 7 (control, BL and BDL). Oocytes and embryos were analyzed by Multiple Reaction Monitoring mass spectrometry (MRM-MS) to determine their lipid composition. Interestingly, principal component analysis (PCA) revealed a clear distinction in the lipid profile of oocytes and blastocysts from both treatments compared to the control group. Control oocytes and blastocysts had higher triacylglycerol and cholesterol ester enrichment, while the OL, ODL, BL, and BDL groups had higher amounts of free fatty acids (FFA). The structural and signaling phospholipids also differed among groups. Our findings suggest that the lipid-enriched fraction of FBS can be manipulated for IVM to ensure proper maturation, resulting in oocytes and blastocysts with less accumulated intracellular lipids and an improved metabolic status.
Collapse
Affiliation(s)
- Camila Bruna de Lima
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Science, Federal University of ABC, Santo André, SP, Brazil
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec, Canada
| | - Giulia Zanotto Barbosa
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Science, Federal University of ABC, Santo André, SP, Brazil
| | - Jessica Ispada
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Science, Federal University of ABC, Santo André, SP, Brazil
| | - Erika Cristina Dos Santos
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Science, Federal University of ABC, Santo André, SP, Brazil
| | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Science, Federal University of ABC, Santo André, SP, Brazil
| |
Collapse
|
8
|
Annes K, de Lima CB, Ispada J, dos Santos ÉC, Fontes PK, Nichi M, Nogueira MFG, Sudano MJ, Milazzotto MP. Insulin-like growth factor-1 (IGF-1) selectively modulates the metabolic and lipid profile of bovine embryos according to their kinetics of development. Theriogenology 2023; 204:1-7. [PMID: 37030172 DOI: 10.1016/j.theriogenology.2023.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/12/2023] [Accepted: 03/26/2023] [Indexed: 04/03/2023]
Abstract
Supplementation of culture media with IGF-1 during in vitro culture of embryos has had controversial results over the years. In the present study, we show that differences previously observed in response to IGF addition might be related to intrinsic heterogeneity of the embryos. In other words, the effects exerted by IGF-1 are dependent on the characteristics of the embryos and their ability to modulate metabolism and overcome stressful conditions, such as the ones found in a non-optimized in vitro culture system. To test this hypothesis, in vitro produced bovine embryos with distinct morphokinetics (fast- and slow-cleavage) were submitted to treatment with IGF-1 and then evaluated for embryo production rates, total cell number, gene expression and lipid profile. Our results show that remarkable differences were found when fast and slow embryos treated with IGF-1 were compared. Fast embryos respond by upregulating genes related to mitochondrial function, stress response, and lipid metabolism, whereas slow embryos presented lower mitochondrial efficiency and lipid accumulation. We conclude that indeed the treatment with IGF-1 selectively affects embryonic metabolism according to early morphokinetics phenotypes, and this information is relevant for decision-making in the design of more appropriate in vitro culture systems.
Collapse
|
9
|
de Oliveira Fernandes G, de Lima CB, Fidelis AAG, Milazzotto MP, Dode MAN. Metabolic signature of spent culture media shows lipid metabolism as a determinant of pregnancy outcomes. Reprod Domest Anim 2023; 58:117-128. [PMID: 36156318 DOI: 10.1111/rda.14271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 09/11/2022] [Accepted: 09/23/2022] [Indexed: 01/07/2023]
Abstract
In the present study, we investigated the spent culture media of in vitro produced (IVP) bovine embryos which did (group Pregnant) or did not (group Non-pregnant) establish pregnancy after transfer. For that purpose, IVP embryos on D5 were transferred to individual droplets for the last 48 h of culture. Embryos at the blastocyst stage were then transferred to synchronized recipients, while respective culture media drops were collected and evaluated individually. The list of metabolites present in spent culture media was obtained by electrospray ionization mass spectrometry (ESI-MS) and analysed with Metaboanalyst® to characterize the metabolic profile of each group. The spectrometric analysis showed that pathways related to lipid metabolism, particularly fatty acids degradation via beta-oxidation, were more present in the Pregnant group whereas no significant pathway was identified in the group Non-pregnant. By using this method, we were able to identify a metabolic signature in culture media that allows for a better comprehension of preferential metabolic routes taken by the most viable embryos. These findings offer great insights into the biochemistry of embryo development and reveal a potential target for the development of better-quality IVP systems, as well as tools to identify bovine embryos with greater chances to establish and maintain pregnancy.
Collapse
Affiliation(s)
| | - Camila Bruna de Lima
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Québec, Canada.,Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, Brazil
| | | | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, Brazil
| | - Margot Alves Nunes Dode
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, Brazil.,Embrapa Genetic Resources and Biotechnology, Laboratory of Animal Reproduction, Brasília, Brazil
| |
Collapse
|
10
|
Feitosa WB, Milazzotto MP, Mendes CM, da Rocha AM, Avanzo JL, Martins EAL, Visintin JA, Assumpção MEOD. Exogenous DNA length and quantity affect the transfection rate, but not sperm viability during Sperm-Mediated Gene Transfer. Gene Reports 2022. [DOI: 10.1016/j.genrep.2022.101679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
11
|
Milazzotto MP, Ispada J, de Lima CB. Metabolism-epigenetic interactions on in vitro produced embryos. Reprod Fertil Dev 2022; 35:84-97. [PMID: 36592974 DOI: 10.1071/rd22203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Metabolism and epigenetics, which reciprocally regulate each other in different cell types, are fundamental aspects of cellular adaptation to the environment. Evidence in cancer and stem cells has shown that the metabolic status modifies the epigenome while epigenetic mechanisms regulate the expression of genes involved in metabolic processes, thereby altering the metabolome. This crosstalk occurs as many metabolites serve as substrates or cofactors of chromatin-modifying enzymes. If we consider the intense metabolic dynamic and the epigenetic remodelling of the embryo, the comprehension of these regulatory networks will be important not only for understanding early embryonic development, but also to determine in vitro culture conditions that support embryo development and may insert positive regulatory marks that may persist until adult life. In this review, we focus on how metabolism may affect epigenetic reprogramming of the early stages of development, in particular acetylation and methylation of histone and DNA. We also present other metabolic modifications in bovine embryos, such as lactylation, highlighting the promising epigenetic and metabolic targets to improve conditions for in vitro embryo development.
Collapse
Affiliation(s)
- Marcella Pecora Milazzotto
- Laboratory of Embryo Metabolism and Epigenomic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil
| | - Jessica Ispada
- Laboratory of Embryo Metabolism and Epigenomic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil
| | - Camila Bruna de Lima
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec City, QC, Canada
| |
Collapse
|
12
|
Milazzotto MP, Noonan MJ, de Almeida Monteiro Melo Ferraz M. Mining RNAseq data reveals dynamic metaboloepigenetic profiles in human, mouse and bovine pre-implantation embryos. iScience 2022; 25:103904. [PMID: 35252810 PMCID: PMC8889150 DOI: 10.1016/j.isci.2022.103904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/20/2021] [Accepted: 02/07/2022] [Indexed: 12/01/2022] Open
Abstract
Metaboloepigenetic regulation has been reported in stem cells, germ cells, and tumor cells. Embryonic metaboloepigenetics, however, have just begun to be described. Here we analyzed RNAseq data to characterize the metaboloepigenetic profiles of human, mouse, and bovine pre-implantation embryos. In embryos, metaboloepigenetic reprogramming was species-specific, varied with the developmental stage and was disrupted with in vitro culture. Metabolic pathways and gene expressions were strongly correlated with early embryo DNA methylation and were changed with in vitro culture. Although the idea that the in vitro environment may influence development is not new, there has been little progress on improving pregnancy rates after decades using in vitro fertilization. Hence, the present data will contribute to understanding how the in vitro manipulation affects the metaboloepigenetic status of early embryos, which can be used to establish culture strategies aimed at improving the in vitro environment and, consequently, pregnancy rates and offspring health. Embryonic metaboloepigenetic reprogramming is stage- and species-specific In vitro culture disrupts the in vivo embryonic metaboloepigenetic reprogramming Metabolic genes and pathways are highly correlated with embryo methylome
Collapse
Affiliation(s)
- Marcella Pecora Milazzotto
- Center of Natural and Human Sciences, Federal University of ABC, São Paulo, 09210-580 Santo André, Brazil
| | - Michael James Noonan
- The Irving K. Barber School of Sciences, The University of British Columbia, Okanagan Campus, Kelowna, BC V1V 1V7, Canada
| | - Marcia de Almeida Monteiro Melo Ferraz
- Gene Center Munich, Ludwig-Maximilians University of Munich, 80539 Munich, Germany
- Clinic of Ruminants, Faculty of Veterinary Medicine Ludwig-Maximilians University of Munich, 80539 Munich, Germany
- Corresponding author
| |
Collapse
|
13
|
Ispada J, Milazzotto MP. Silencing mark H3K27me3 is differently reprogrammed in bovine embryos with distinct kinetics of development. Reprod Domest Anim 2021; 57:333-336. [PMID: 34854135 DOI: 10.1111/rda.14060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/28/2021] [Indexed: 11/30/2022]
Abstract
The kinetics of the first cleavages is a predictor of blastocyst development and implantation. For bovine embryos, this attribute was previously related to distinct metabolic, molecular and epigenetic profiles, including DNA and histone modifications. In the present work, we described the dynamics of trimethylation of lysine 27 on histone H3 (H3K27me3) in fast and slow developing embryos and verified if this epigenetic mark was also influenced by the speed of the first cleavages. In vitro-produced bovine embryos were classified as fast (4 or more cells) or slow (2 cells) at 40 hr post fertilization (hpf) and either collected or cultured until 96 hpf or 186 hpf. Immunofluorescence analysis was performed in these three time points and showed that although both groups presented the same levels of H3K27me3 at 40 hpf, slow embryos presented a pronounced increase in this mark at 186 hpf when compared to fast embryos, resulting in blastocysts with remarkable differences in H3K27me3 levels. In conclusion, the increased levels of this repressive histone post-translation modification (PTM) might be an attempt of slow embryos to promote gene expression control and chromatin integrity, since it was already reported that these embryos present reduced levels of other epigenetic repressive marks as DNA methylation and trimethylation of lysine 9 on histone H3 (H3K9me3).
Collapse
Affiliation(s)
- Jessica Ispada
- Laboratory of Cellular and Molecular Biology, Center of Natural and Human Science, Federal University of ABC, Santo Andre, Brazil.,Institute of Biomedical Sciences, University of Sao Paulo, Butanta, Brazil
| | - Marcella Pecora Milazzotto
- Laboratory of Cellular and Molecular Biology, Center of Natural and Human Science, Federal University of ABC, Santo Andre, Brazil.,Institute of Biomedical Sciences, University of Sao Paulo, Butanta, Brazil
| |
Collapse
|
14
|
Ispada J, da Fonseca Junior AM, Santos OLR, Bruna de Lima C, Dos Santos EC, da Silva VL, Almeida FN, de Castro Leite S, Juan Ross P, Milazzotto MP. Metabolism-driven post-translational modifications of H3K9 in early bovine embryos. Reproduction 2021; 162:181-191. [PMID: 34348233 DOI: 10.1530/rep-21-0134] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/28/2021] [Indexed: 11/08/2022]
Abstract
Metabolic and molecular profiles were reported as different for bovine embryos with distinct kinetics during the first cleavages. In this study, we used this same developmental model (fast vs slow) to determine if the relationship between metabolism and developmental kinetics affects the levels of acetylation or tri-methylation at histone H3 lysine 9 (H3K9ac and H3K9me3, respectively). Fast and slow developing embryos presented different levels of H3K9ac and H3K9me3 from the earliest stages of development (40 and 96 hpi) and up to the blastocyst stage. For H3K9me3, both groups of embryos presented a wave of demethylation and de novo methylation, although it was more pronounced in fast than slow embryos, resulting in blastocysts with higher levels of this mark. The H3K9ac reprogramming profile was distinct between kinetics groups. While slow embryos presented a wave of deacetylation, followed by an increase in this mark at the blastocyst stage, fast embryos reduced this mark throughout all the developmental stages studied. H3K9me3 differences corresponded to writer and eraser transcript levels, while H3K9ac patterns were explained by metabolism-related gene expression. To verify if metabolic differences could alter levels of H3K9ac, embryos were cultured with sodium-iodoacetate (IA) or dichloroacetate (DCA) to disrupt the glycolytic pathway or increase acetyl-CoA production, respectively. IA reduced H3K9ac while DCA increased H3K9ac in blastocysts. Concluding, H3K9me3 and H3K9ac patterns differ between embryos with different kinetics, the second one explained by metabolic pathways involved in acetyl-CoA production. So far, this is the first study demonstrating a relationship between metabolic differences and histone post-translational modifications in bovine embryos.
Collapse
Affiliation(s)
- Jessica Ispada
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural Sciences and Humanities, Universidade Federal do ABC, Santo André, São Paulo, Brazil.,Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil
| | - Aldcejam Martins da Fonseca Junior
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural Sciences and Humanities, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Otávio Luiz Ramos Santos
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural Sciences and Humanities, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Camila Bruna de Lima
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural Sciences and Humanities, Universidade Federal do ABC, Santo André, São Paulo, Brazil.,Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec, Canada
| | - Erika Cristina Dos Santos
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural Sciences and Humanities, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Vinicius Lourenço da Silva
- Bioinformatics and Health Informatics Group, Center for Engineering, Modeling and Applied Social Sciences, Universidade Federal do ABC, São Bernardo do Campo, São Paulo, Brazil
| | - Fernanda Nascimento Almeida
- Center for Mathematics Computation and Cognition, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Saul de Castro Leite
- Bioinformatics and Health Informatics Group, Center for Engineering, Modeling and Applied Social Sciences, Universidade Federal do ABC, São Bernardo do Campo, São Paulo, Brazil
| | - Pablo Juan Ross
- Department of Animal Science, University of California Davis, Davis, California, USA
| | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural Sciences and Humanities, Universidade Federal do ABC, Santo André, São Paulo, Brazil.,Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil
| |
Collapse
|
15
|
Santos ÉCD, Fonseca Junior AMD, Lima CBD, Ispada J, Silva JVAD, Milazzotto MP. Less is more: Reduced nutrient concentration during in vitro culture improves embryo production rates and morphophysiology of bovine embryos. Theriogenology 2021; 173:37-47. [PMID: 34329894 DOI: 10.1016/j.theriogenology.2021.07.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/12/2021] [Accepted: 07/17/2021] [Indexed: 10/20/2022]
Abstract
Reproducing the environment to which the embryo is naturally exposed may be an alternative to improve viability of embryos produced in vitro. In the first part of this work, we describe a novel culture media, namely Embryonic Culture Supplementation (ECS100). The composition of this media was based on the contents of carbohydrates and amino acids found in oviductal and uterine fluids. Because it was a new formulation, we investigated the performance of ECS100 in comparison with conventionally used SOFaa, and possible benefits to embryo development. Embryo production rates (cleavage, morula and blastocyst conversion, blastocyst and hatching rates) and morphophysiological parameters (total cell number, cell allocation, Mitochondrial membrane potential (MMP), Reactive Oxygen Species (ROS), NADH, FAD+ and ATP content) were similar between ECS100 and SOFaa. Next, we tested if a reduction of ECS100 concentration could positively contribute to embryo viability by resembling the more dynamic availability of nutrients that reach the embryos in vivo. Therefore, embryos were cultured in ECS100 or in its serial dilution (ECS75, 50 and 25). Despite the fact that the lowest concentration (ECS25) still supported blastocyst formation, halving the concentration of metabolites (ECS50) actually improved embryo production rates. Thus, embryos produced in ECS100 or ECS50 were submitted to further analyses on Days 4 and 7. Embryos cultured in ECS50 presented better developmental rates and morphophysiological profile than embryos cultured in ECS100. Additionally, physiological traits (MMP, ROS and NADH levels) of embryos cultured in ECS50 presented the expected pattern for embryos produced in vivo. In conclusion, we presented a novel, more personalized and effective culture media for bovine IVP embryos. And although the ECS media formulation was based on the contents of female reproductive fluids, it is worth mentioning that adaptations must be specifically directed for in vitro conditions rather than reproduced exactly from in vivo state.
Collapse
Affiliation(s)
- Érika Cristina Dos Santos
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil.
| | - Aldcejam Martins da Fonseca Junior
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil.
| | - Camila Bruna de Lima
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil; Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec, Canada.
| | - Jessica Ispada
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil.
| | - João Vitor Alcantara da Silva
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil.
| | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil; Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil.
| |
Collapse
|
16
|
de Oliveira Fernandes G, Milazzotto MP, Fidelis AAG, Kawamoto TS, de Oliveira Leme L, de Lima CB, Franco MM, Dode MAN. Biochemical markers for pregnancy in the spent culture medium of in vitro produced bovine embryos†. Biol Reprod 2021; 105:481-490. [PMID: 33982057 DOI: 10.1093/biolre/ioab095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 04/28/2021] [Accepted: 05/05/2021] [Indexed: 12/29/2022] Open
Abstract
The present study aimed to identify biomarkers to assess the quality of in vitro produced (IVP) bovine embryos in the culture media. IVP embryos on Day (D) 5 of development were transferred to individual drops, where they were maintained for the last 48 h of culture. Thereafter, the medium was collected and the embryos were transferred to the recipients. After pregnancy diagnosis, the media were grouped into the pregnant and nonpregnant groups. The metabolic profiles of the media were analyzed via electrospray ionization mass spectrometry, and the concentrations of pyruvate, lactate, and glutamate were assessed using fluorimetry. The spectrometric profile revealed that the media from embryos from the pregnant group presented a higher signal intensity compared to that of the nonpregnant group; the ions 156.13 Da [M + H]+, 444.33 Da [M + H]+, and 305.97 Da [M + H]+ were identified as biomarkers. Spent culture medium from expanded blastocysts (Bx) that established pregnancy had a greater concentration of pyruvate (p = 0.0174) and lesser concentration of lactate (p = 0.042) than spent culture medium from Bx that did not establish pregnancy. Moreover, pyruvate in the culture media of Bx can predict pregnancy with 90.9% sensitivity and 75% specificity. In conclusion, we identified markers in the culture media that helped in assessing the most viable IVP embryos with a greater potential to establish pregnancy.
Collapse
Affiliation(s)
- Gabriela de Oliveira Fernandes
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, DF, Brazil.,Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
| | | | | | - Taynan Stonoga Kawamoto
- Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
| | - Ligiane de Oliveira Leme
- Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Brazil.,UFES, Universidade Federal do Espírito Santo, Alegre, ES, Brazil
| | - Camila Bruna de Lima
- Center of Natural and Human Sciences, Universidade Federal do ABC, Santo André, São Paulo, Brazil.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle. Département des Sciences Animales, Université Laval, Québec, Canada
| | - Maurício Machaim Franco
- Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
| | - Margot Alves Nunes Dode
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, DF, Brazil.,Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
| |
Collapse
|
17
|
Milazzotto MP, de Lima CB, da Fonseca AM, dos Santos EC, Ispada J. Erasing gametes to write blastocysts: metabolism as the new player in epigenetic reprogramming. Anim Reprod 2020; 17:e20200015. [PMID: 33029209 PMCID: PMC7534565 DOI: 10.1590/1984-3143-ar2020-0015] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Understanding preimplantation embryonic development is crucial for the improvement of assisted reproductive technologies and animal production. To achieve this goal, it is important to consider that gametes and embryos are highly susceptible to environmental changes. Beyond the metabolic adaptation, the dynamic status imposed during follicular growth and early embryogenesis may create marks that will guide the molecular regulation during prenatal development, and consequently impact the offspring phenotype. In this context, metaboloepigenetics has gained attention, as it investigates the crosstalk between metabolism and molecular control, i.e., how substrates generated by metabolic pathways may also act as players of epigenetic modifications. In this review, we present the main metabolic and epigenetic events of pre-implantation development, and how these systems connect to open possibilities for targeted manipulation of reproductive technologies and animal production systems.
Collapse
Affiliation(s)
- Marcella Pecora Milazzotto
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
- Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Camila Bruna de Lima
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
- Département des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle, Faculté des Sciences de l’Agriculture et de l’Alimentation, Université Laval, Quebec, Canada
| | - Aldcejam Martins da Fonseca
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
| | - Erika Cristina dos Santos
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
| | - Jessica Ispada
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
| |
Collapse
|
18
|
da Fonseca Junior AM, Gaita V, Argumedo DR, de Castro LS, Losano JDDA, Ferreira Leite R, Nichi M, Assumpção MEOD, de Araújo DR, Neves AAR, Milazzotto MP. Changes in fertilization medium viscosity using hyaluronic acid impact bull sperm motility and acrosome status. Reprod Domest Anim 2020; 55:974-983. [PMID: 32506705 DOI: 10.1111/rda.13739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 05/28/2020] [Indexed: 11/26/2022]
Abstract
The female reproductive tract, in particular the composition of the uterine and oviduct fluids, is responsible, at least in part, for triggering sperm cell modifications, essential for the acquisition of fertilization ability. Hyaluronic acid (HA) is a glycosaminoglycan present in these fluids, and its role in the fertilization process and sperm functionality is still barely understood. This work was designed to (a) determine the rheological characteristics of the fertilization medium by the addition of HA and (b) determine the HA influence on sperm motility and functional status. To that end, the in vitro fertilization medium was supplemented with 4 doses of HA (6, 60, 600 and 6,000 µg/ml) and analysed for viscosity and adhesion strength characteristics. Then, thawed semen from 6 bulls were incubated in these media and assessed at 4 different moments for morphological and functional parameters (plasma and acrosomal membrane integrities, mitochondrial membrane potential, capacitation, acrosomal reaction, and motility). The rheological evaluation showed that the addition of HA was able to increase both the viscosity and the adhesion strength of the fertilization medium, especially in the 6,000 µg/ml group in which the effect was more pronounced. No influence of HA could be observed on mitochondrial potential, and acrosomal and plasma membrane integrities. However, HA supplementation, at lower doses, led to an increase in the number of reacted sperm, as well as changes in motility parameters, with increase in the number of motile, rapid and progressive spermatozoa. In conclusion, the addition of HA alters the rheological properties of the fertilization medium and leads to the improvement of the properties related to sperm motility and capacitation, without compromising other functional aspects of the cell.
Collapse
Affiliation(s)
| | - Vincenzo Gaita
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli Federico II, Napoli, Italy
| | | | | | | | - Roberta Ferreira Leite
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Marcilio Nichi
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | | | | | | | | |
Collapse
|
19
|
Alves GP, Cordeiro FB, Bruna de Lima C, Annes K, Cristina Dos Santos É, Ispada J, Fontes PK, Nogueira MFG, Nichi M, Milazzotto MP. Follicular environment as a predictive tool for embryo development and kinetics in cattle. Reprod Fertil Dev 2019; 31:451-461. [PMID: 30301510 DOI: 10.1071/rd18143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 08/15/2018] [Indexed: 12/19/2022] Open
Abstract
Follicular fluid composition and the transcription pattern of granulosa cells were analysed to better comprehend associations between embryo development and morphokinetics. Bovine follicles were punctured and their respective follicular fluid and granulosa cells were collected. Cumulus-oocyte complexes derived from these follicles were matured and fertilised invitro. Embryo morphology and kinetics were evaluated at 40h after insemination, when embryos were classified as fast (FCL, four or more cells), slow (SCL, 2-3 cells) or non-cleaved (NCL). Their development was followed until the blastocyst stage. Glucose, pyruvate, cholesterol and oestradiol were quantified in the follicular fluid and the transcription pattern of 96 target genes was evaluated in granulosa cells by large-scale quantitative reverse transcription polymerase chain reaction. Follicular fluid from the blastocyst group had increased levels of glucose, total cholesterol and pyruvate compared to the non-blastocyst group, whereas higher levels of oestradiol were observed in the follicular fluid of embryos and blastocysts with fast cleavage. The transcriptional pattern revealed altered metabolic pathways between groups, such as lipid metabolism, cellular stress and cell signalling. In conclusion, both follicular fluid and granulosa cells are associated with the possibility of identifying follicles that may generate embryos with high potential to properly develop to the blastocyst stage.
Collapse
Affiliation(s)
- Gláucia Pereira Alves
- Laboratory of Cellular and Molecular Biology, Centre of Natural Sciences and Humanities, Federal University of ABC, Av dos Estados, 5005, CEP 09210190, Santo André, SP, Brazil
| | - Fernanda Bertuccez Cordeiro
- Laboratorio para Investigaciones Biomédicas, Escuela Superior Politécnica del Litoral, ESPOL, Guayaquil, Ecuador
| | - Camila Bruna de Lima
- Laboratory of Cellular and Molecular Biology, Centre of Natural Sciences and Humanities, Federal University of ABC, Av dos Estados, 5005, CEP 09210190, Santo André, SP, Brazil
| | - Kelly Annes
- Laboratory of Cellular and Molecular Biology, Centre of Natural Sciences and Humanities, Federal University of ABC, Av dos Estados, 5005, CEP 09210190, Santo André, SP, Brazil
| | - Érika Cristina Dos Santos
- Laboratory of Cellular and Molecular Biology, Centre of Natural Sciences and Humanities, Federal University of ABC, Av dos Estados, 5005, CEP 09210190, Santo André, SP, Brazil
| | - Jéssica Ispada
- Laboratory of Cellular and Molecular Biology, Centre of Natural Sciences and Humanities, Federal University of ABC, Av dos Estados, 5005, CEP 09210190, Santo André, SP, Brazil
| | - Patrícia Kubo Fontes
- Institute of Biosciences, Universidade Estadual Paulista (UNESP), Campus Botucatu, São Paulo, Brazil
| | - Marcelo Fabio Gouveia Nogueira
- Department of Biological Sciences, School of Sciences and Languages, Universidade Estadual Paulista (UNESP), Campus Assis, Assis, São Paulo, Brazil
| | - Marcílio Nichi
- Department of Animal Reproduction, Faculty of Veterinary Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Marcella Pecora Milazzotto
- Laboratory of Cellular and Molecular Biology, Centre of Natural Sciences and Humanities, Federal University of ABC, Av dos Estados, 5005, CEP 09210190, Santo André, SP, Brazil
| |
Collapse
|
20
|
de Lima CB, Ferreira CR, Milazzotto MP, Sobreira TJP, Vireque AA, Cooks RG. Comprehensive lipid profiling of early stage oocytes and embryos by MRM profiling. J Mass Spectrom 2018; 53:1247-1252. [PMID: 30325087 DOI: 10.1002/jms.4301] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 09/17/2018] [Accepted: 09/26/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Camila Bruna de Lima
- Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
- Center of Natural and Human Sciences, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Christina Ramires Ferreira
- Center for Analytical Instrumentation Development, Department of Chemistry, Purdue University, West Lafayette, Indiana
- Bindley Bioscience Center, Purdue University, West Lafayette, Indiana
| | - Marcella Pecora Milazzotto
- Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
- Center of Natural and Human Sciences, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Tiago Jose P Sobreira
- Center for Analytical Instrumentation Development, Department of Chemistry, Purdue University, West Lafayette, Indiana
- Bindley Bioscience Center, Purdue University, West Lafayette, Indiana
| | | | - R Graham Cooks
- Center for Analytical Instrumentation Development, Department of Chemistry, Purdue University, West Lafayette, Indiana
| |
Collapse
|
21
|
Ispada J, de Lima CB, Sirard MA, Fontes PK, Nogueira MFG, Annes K, Milazzotto MP. Genome-wide screening of DNA methylation in bovine blastocysts with different kinetics of development. Epigenetics Chromatin 2018; 11:1. [PMID: 29310712 PMCID: PMC5757301 DOI: 10.1186/s13072-017-0171-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 12/14/2017] [Indexed: 01/01/2023] Open
Abstract
Background The timing of the first cell divisions may predict the developmental potential of an embryo, including its ability to establish pregnancy. Besides differences related to metabolism, stress, and survival, embryos with different speeds of development present distinct patterns of gene expression, mainly related to energy and lipid metabolism. As gene expression is regulated by epigenetic factors, and that includes DNA methylation patterns, in this study we compared the global DNA methylation profile of embryos with different kinetics of development in order to identify general pathways and regions that are most influenced by this phenotype. For this purpose, bovine embryos were in vitro produced using sexed semen (female), classified as fast (four or more cells) or slow (two cells) at 40 hpi and cultured until blastocyst stage, when they were analyzed. Results Genome-wide DNA methylation analysis identified 11,584 differently methylated regions (DMRs) (7976 hypermethylated regions in fast and 3608 hypermethylated regions in slow embryos). Fast embryos presented more regions classified as hypermethylated distributed throughout the genome, as in introns, exons, promoters, and repeat elements while in slow embryos, hypermethylated regions were more present in CpG islands. DMRs were clustered by means of biological processes, and the most affected pathways were related to cell survival/differentiation and energy/lipid metabolism. Transcripts profiles from DM genes connected with these pathways were also assessed, and the most part disclosed changes in relative quantitation. Conclusion The kinetics of the first cleavages influences the DNA methylation and expression profiles of genes related to metabolism and differentiation pathways and may affect embryo viability. Electronic supplementary material The online version of this article (10.1186/s13072-017-0171-z) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jessica Ispada
- Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil. .,Laboratório de Biologia Celular e Molecular - Bloco A - 502-3, Center of Natural and Human Sciences, Universidade Federal do ABC, Av dos Estados, 5001, Bangu, Santo André, São Paulo, Brazil.
| | - Camila Bruna de Lima
- Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil.,Laboratório de Biologia Celular e Molecular - Bloco A - 502-3, Center of Natural and Human Sciences, Universidade Federal do ABC, Av dos Estados, 5001, Bangu, Santo André, São Paulo, Brazil
| | - Marc-André Sirard
- Centre de Recherche en Biologie de la Reproduction, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec, Canada
| | - Patrícia Kubo Fontes
- Departament of Pharmacology, Institute of Biosciences, Universidade Estadual Paulista (UNESP), Campus Botucatu, Botucatu, São Paulo, Brazil
| | - Marcelo Fábio Gouveia Nogueira
- Departament of Biological Sciences, School of Sciences and Languages, Universidade Estadual Paulista (UNESP), Campus Assis, Assis, São Paulo, Brazil
| | - Kelly Annes
- Laboratório de Biologia Celular e Molecular - Bloco A - 502-3, Center of Natural and Human Sciences, Universidade Federal do ABC, Av dos Estados, 5001, Bangu, Santo André, São Paulo, Brazil
| | - Marcella Pecora Milazzotto
- Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil. .,Laboratório de Biologia Celular e Molecular - Bloco A - 502-3, Center of Natural and Human Sciences, Universidade Federal do ABC, Av dos Estados, 5001, Bangu, Santo André, São Paulo, Brazil.
| |
Collapse
|
22
|
Abstract
Estabeleceu-se um protocolo novo e eficaz de cultivo individual de embriões bovinos sem o uso de cocultivo e sem compartilhamento de meio visando à análise do metabolismo individual do embrião. Para isso, embriões foram produzidos in vitro por protocolos convencionais em três diferentes tipos de meio: KSOM, SOFaa e KSOM seguido por SOFaa no dia 2. Os zigotos presumíveis foram divididos em seis grupos: controles (cultivo em grupo – C-KSOM, C-SOFaa e C-KS) e sistema de poços individuais (W-KSOM, W-SOFaa e W-KS). As taxas de clivagem foram avaliadas nos dias 2 e 7, respectivamente. Além disso, a quantificação relativa de transcritos relacionados a importantes processos metabólicos (GLUT1, GLUT3, GSK3, SOD1, HSPD1 e G6PD) foi avaliada nos blastocistos dos grupos C-KS e W-KS. Os resultados mostram que as taxas de clivagem foram maiores apenas no grupo W-KSOM quando comparado ao grupo C-KSOM, enquanto a taxa de blastocistos diferiu apenas entre os grupos C e W-SOF. Além disso, a análise da expressão gênica mostrou que blastocistos cultivados em grupo ou em sistema de poços individuais são semelhantes quanto à expressão gênica. Assim, a conclusão obtida foi que o sistema individual proposto pode ser utilizado como um protocolo alternativo eficiente para o cultivo individual de embriões de bovino, uma vez que suas características permanecem semelhantes àquelas do sistema convencional de produção de embriões.
Collapse
|
23
|
Dos Santos ÉC, Martinho H, Annes K, da Silva T, Soares CA, Leite RF, Milazzotto MP. Raman-based noninvasive metabolic profile evaluation of in vitro bovine embryos. J Biomed Opt 2016; 21:75002. [PMID: 27385403 DOI: 10.1117/1.jbo.21.7.075002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
The timing of the first embryonic cell divisions may predict the ability of an embryo to establish pregnancy. Similarly, metabolic profiles may be markers of embryonic viability. However, in bovine, data about the metabolomics profile of these embryos are still not available. In the present work, we describe Raman-based metabolomic profiles of culture media of bovine embryos with different developmental kinetics (fast x slow) throughout the in vitro culture. The principal component analysis enabled us to classify embryos with different developmental kinetics since they presented specific spectroscopic profiles for each evaluated time point. We noticed that bands at 1076 cm(−1) (lipids), 1300 cm(−1) (Amide III), and 2719 cm(−1) (DNA nitrogen bases) gave the most relevant spectral features, enabling the separation between fast and slow groups. Bands at 1001 cm(−1) (phenylalanine) and 2892 cm(−1) (methylene group of the polymethylene chain) presented specific patterns related to embryonic stage and can be considered as biomarkers of embryonic development by Raman spectroscopy. The culture media analysis by Raman spectroscopy proved to be a simple and sensitive technique that can be applied with high efficiency to characterize the profiles of in vitro produced bovine embryos with different development kinetics and different stages of development.
Collapse
|
24
|
Milazzotto MP, Goissis MD, Chitwood JL, Annes K, Soares CA, Ispada J, Assumpção MEOÁ, Ross PJ. Early cleavages influence the molecular and the metabolic pattern of individually cultured bovine blastocysts. Mol Reprod Dev 2016; 83:324-36. [DOI: 10.1002/mrd.22619] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 01/26/2016] [Indexed: 02/05/2023]
Affiliation(s)
| | | | - James Lee Chitwood
- Department of Animal Science; University of California; Davis California
| | - Kelly Annes
- Center of Natural and Human Sciences; Universidade Federal do ABC; Santo Andre Sao Paulo Brazil
| | - Carlos Alexandre Soares
- Center of Natural and Human Sciences; Universidade Federal do ABC; Santo Andre Sao Paulo Brazil
| | - Jéssica Ispada
- Center of Natural and Human Sciences; Universidade Federal do ABC; Santo Andre Sao Paulo Brazil
| | | | - Pablo Juan Ross
- Department of Animal Science; University of California; Davis California
| |
Collapse
|
25
|
Simões R, Feitosa WB, Milazzotto MP, Nicacio AC, Barros FROD, Gonçalves JSDA, Marques MG, Visintin JA, Assumpção MEOD. Comparison of different methods for exogenous DNA uptake by bovine spermatozoa. Braz J Vet Res Anim Sci 2015. [DOI: 10.11606/issn.1678-4456.v52i1p78-86] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
<p>Apesar da manipulação genética de animais domésticos ser de grande interesse para a produção animal e para a indústria farmacêutica, a sua eficiência ainda é insatisfatória. A injeção pronuclear, a técnica mais utilizada para tal proposito, principalmente em camundongos, ainda apresenta limitações para esta espécie. Algumas alternativas têm sido desenvolvidas como o uso de espermatozoides como vetores para transferência genica, na qual a célula espermática tem habilidade espontânea de se ligar a molécula de DNA e internaliza-la. Dado o potencial da transferência genica mediada por espermatozoide para animais domésticos transgênicos, o objetivo do presente trabalho foi a avaliação de quatro métodos de incorporação de DNA para a transferência genica mediada por espermatozoides na espécie bovina: incubação com DNA, alteração da membrana plasmática induzida por cálcio ionóforo seguida por incubação com o DNA exógeno, eletroporação e lipofecção. Espermatozoides não expostos ao DNA exógeno foram usados como grupo controle. Os índices de clivagem, blastocisto e eclosão foram avaliados, respectivamente, as 72 horas após a inseminação dos oócitos, bem como, aos 9 e 12 dias de cultivo embrionário. Os embriões positivos para o DNA exógeno foram avaliados por PCR. Nenhum efeito de tratamento foi observado nos índices de clivagem, blastocisto e eclosão. Além disso, a porcentagem de blastocistos positivos para o DNA exógeno não diferiu entre os grupos experimentais. Apesar do baixo número de embriões positivos para DNA exógeno, os resultados obtidos mostram que todos os tratamentos apresentaram eficiências similares. A conclusão obtida foi que, apesar de os índices de desenvolvimento embrionário terem sido similares e constante em todos os grupos experimentais, outros fatores como a sequência, o tamanho e a concentração do DNA exógeno devem ser avaliados para melhorar a transferência genica mediada por espermatozoides.</p>
Collapse
|
26
|
Veiga GAL, Milazzotto MP, Nichi M, Lúcio CF, Silva LCG, Angrimani DSR, Vannucchi CI. Gene expression of estrogen and oxytocin receptors in the uterus of pregnant and parturient bitches. ACTA ACUST UNITED AC 2015; 48:339-43. [PMID: 25714892 PMCID: PMC4418364 DOI: 10.1590/1414-431x20143969] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 10/10/2014] [Indexed: 11/22/2022]
Abstract
In the canine species, the precise mechanisms of pregnancy maintenance and the initiation of parturition are not completely understood. The expression of genes encoding the receptors for estrogen (ERα mRNA) and oxytocin (OTR mRNA) was studied in the endometrium and myometrium during pregnancy and parturition in dogs. Real-time PCR was performed to quantify the levels of ERα mRNA and OTR mRNA in the uterus of bitches during early (up to 20 days of gestation), mid (20 to 40 days) and late pregnancy (41 to 60 days), and parturition (first stage of labor). All tissues expressed ERα and OTR mRNA, and are thus possibly able to respond to eventual estrogen and oxytocin hormonal stimuli. No statistically significant differences in the expression of ERα mRNA were verified in the endometrium and myometrium throughout pregnancy and parturition, but expression of OTR mRNA increased at both parturition and late pregnancy. We concluded that the increase of endometrial and myometrial OTR mRNA expression in dogs is not an event dependent on estrogenic stimulation. Moreover, the contractility response of the canine uterus to oxytocin begins during pregnancy and maintains myometrial activity. The expression of OTR mRNA in canine uterine tissues varied over time, which supports an interpretation that the sensitivity and response to hormone therapy varies during the course of pregnancy and labor. Further studies are needed to elucidate the factors underlying the synthesis of uterine oxytocin receptors and the possible role of ERβ rather than ERα in the uterine tissues during pregnancy and parturition in dogs.
Collapse
Affiliation(s)
- G A L Veiga
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - M P Milazzotto
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
| | - M Nichi
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - C F Lúcio
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - L C G Silva
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - D S R Angrimani
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - C I Vannucchi
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| |
Collapse
|
27
|
Veiga GAL, Milazzotto MP, Lúcio CF, Silva LCG, Vannucchi CI. Receptores de estrógeno e ocitocina no corpo lúteo durante a gestação e parto em cadelas. Braz J Vet Res Anim Sci 2014. [DOI: 10.11606/issn.1678-4456.v51i4p346-351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
28
|
Soares CA, Annes K, Dreyer TR, Magrini T, Sonoda MT, da Silva Martinho H, Nichi M, d'Ávila Assumpção MEO, Milazzotto MP. Photobiological effect of low-level laser irradiation in bovine embryo production system. J Biomed Opt 2014; 19:35006. [PMID: 24658775 DOI: 10.1117/1.jbo.19.3.035006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 02/19/2014] [Indexed: 06/03/2023]
Abstract
The objectives of this study were to evaluate the effect of low-level laser irradiation (LLLI) on bovine oocyte and granulosa cells metabolism during in vitro maturation (IVM) and further embryo development. Cumulus-oocytes complexes (COCs) were subjected (experimental group) or not (control group) to irradiation with LLLI in a 633-nm wavelength and 1 J/cm2 fluency. The COCs were evaluated after 30 min, 8, 16, and 24 h of IVM. Cumulus cells were evaluated for cell cycle status, mitochondrial activity, and viability (flow cytometry). Oocytes were assessed for meiotic progression status (nuclear staining), cell cycle genes content [real-time polymerase chain reaction (PCR)], and signal transduction status (western blot). The COCs were also in vitro fertilized, and the cleavage and blastocyst rates were assessed. Comparisons among groups were statistically performed with 5% significance level. For cumulus cells, a significant increase in mitochondrial membrane potential and the number of cells progressing through the cycle could be observed. Significant increases on cyclin B and cyclin-dependent kinase (CDK4) levels were also observed. Concerning the oocytes, a significantly higher amount of total mitogen-activated protein kinase was found after 8 h of irradiation, followed by a decrease in all cell cycle genes transcripts, exception made for the CDK4. However, no differences were observed in meiotic progression or embryo production. In conclusion, LLLI is an efficient tool to modulate the granulosa cells and oocyte metabolism.
Collapse
Affiliation(s)
- Carlos Alexandre Soares
- Universidade Federal do ABC, Center of Natural and Human Sciences, Rua Santa Adélia, 166, Bloco A, Torre 3, S642, Santo André, SP, Brazil
| | - Kelly Annes
- Universidade Federal do ABC, Center of Natural and Human Sciences, Rua Santa Adélia, 166, Bloco A, Torre 3, S642, Santo André, SP, Brazil
| | - Thiago Revers Dreyer
- Universidade Federal do ABC, Center of Natural and Human Sciences, Rua Santa Adélia, 166, Bloco A, Torre 3, S642, Santo André, SP, Brazil
| | - Taciana Magrini
- Universidade Federal do ABC, Center of Natural and Human Sciences, Rua Santa Adélia, 166, Bloco A, Torre 3, S642, Santo André, SP, Brazil
| | - Mayra Trentin Sonoda
- Universidade Federal do ABC, Center of Natural and Human Sciences, Rua Santa Adélia, 166, Bloco A, Torre 3, S642, Santo André, SP, Brazil
| | - Herculano da Silva Martinho
- Universidade Federal do ABC, Center of Natural and Human Sciences, Rua Santa Adélia, 166, Bloco A, Torre 3, S642, Santo André, SP, Brazil
| | - Marcilio Nichi
- University of São Paulo, Department of Animal Reproduction, São Paulo/ SP 05508-270, Brazil
| | | | - Marcella Pecora Milazzotto
- Universidade Federal do ABC, Center of Natural and Human Sciences, Rua Santa Adélia, 166, Bloco A, Torre 3, S642, Santo André, SP, Brazil
| |
Collapse
|
29
|
Magrini TD, dos Santos NV, Milazzotto MP, Cerchiaro G, da Silva Martinho H. Low-level laser therapy on MCF-7 cells: a micro-Fourier transform infrared spectroscopy study. J Biomed Opt 2012; 17:101516. [PMID: 23223992 DOI: 10.1117/1.jbo.17.10.101516] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Low-level laser therapy (LLLT) is an emerging therapeutic approach for several clinical conditions. The clinical effects induced by LLLT presumably scale from photobiostimulation/photobioinhibition at the cellular level to the molecular level. The detailed mechanism underlying this effect remains unknown. This study quantifies some relevant aspects of LLLT related to molecular and cellular variations. Malignant breast cells (MCF-7) were exposed to spatially filtered light from a He-Ne laser (633 nm) with fluences of 5, 28.8, and 1000 mJ/cm². The cell viability was evaluated by optical microscopy using the Trypan Blue viability test. The micro-Fourier transform infrared technique was employed to obtain the vibrational spectra of each experimental group (control and irradiated) and identify the relevant biochemical alterations that occurred due to the process. It was observed that the red light influenced the RNA, phosphate, and serine/threonine/tyrosine bands. We found that light can influence cell metabolism depending on the laser fluence. For 5 mJ/cm², MCF-7 cells suffer bioinhibition with decreased metabolic rates. In contrast, for the 1 J/cm² laser fluence, cells present biostimulation accompanied by a metabolic rate elevation. Surprisingly, at the intermediate fluence, 28.8 mJ/cm², the metabolic rate is increased despite the absence of proliferative results. The data were interpreted within the retrograde signaling pathway mechanism activated with light irradiation.
Collapse
Affiliation(s)
- Taciana D Magrini
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Rua Santa Adélia 166, Bangu, Santo André, SP 09210-170, Brazil
| | | | | | | | | |
Collapse
|
30
|
Milazzotto MP, Feitosa WB, Paula-Lopes FF, Buratini J, Visintin JA, Assumpção MEOA. The mechanism of oocyte activation influences the cell cycle-related genes expression during bovine preimplantation development. Cell Reprogram 2012; 14:418-24. [PMID: 22928971 DOI: 10.1089/cell.2012.0024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The first cleavage divisions and preimplantation embryonic development are supported by mRNA and proteins synthesized and stored during oogenesis. Thus, mRNA molecules of maternal origin decrease and embryonic development becomes gradually dependent on expression of genetic information derived from the embryonic genome. However, it is still unclear what the role of the sperm cell is during this phase and whether the absence of the sperm cell during the artificial oocyte activation affects subsequent embryonic development. The objective of this study was to determine, in bovine embryos, changes in cell cycle-associated transcript levels (cyclin A, cyclin B, cyclin E, CDC2, CDK2, and CDK4) after oocyte activation in the presence or absence of the sperm cell. To evaluate that, in vitro-produced (IVP) and parthenogenetically activated (PA) embryos (2-4 cells (2-4C), 8-16 cells (8-16C) and blastocysts) were evaluated by real-time PCR. There was no difference in cleavage and blastocyst rates between IVP and PA groups. Transcript level was higher in oocytes than in IVP and PA embryos. Cleaved PA embryos showed higher expression of cyclin A, cyclin B, cyclin E, and CDK2 and lower expression of CDC2 when compared with that from the IVP group. At the time of activation, all transcripts were expressed less in PA than in IVP embryos, whereas at the blastocyst stage, almost all genes were expressed at a higher level in the PA group. These results suggest that in both groups there is an initial consumption of these transcripts in the early stages of embryonic development. Furthermore, 8-16C embryos seem to synthesize more cell cycle-related genes than 2-4C embryos. However, in PA embryos, activation of the cell cycle genes seems to occur after the 8- to 16-cell stage, suggesting a failure in the activation process.
Collapse
|
31
|
Marques MG, Nicacio AC, de Oliveira VP, Nascimento AB, Caetano HVA, Mendes CM, Mello MRB, Milazzotto MP, Assumpção MEOD, Visintin JA. Corrigendum to “In vitro maturation of pig oocytes with different media, hormone and meiosis inhibitors” [Anim. Reprod. Sci. 97 (2007) 375–381]. Anim Reprod Sci 2010. [DOI: 10.1016/j.anireprosci.2009.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
32
|
Gonçalves JSA, Vannucchi CI, Braga FC, Paula-Lopes FF, Milazzotto MP, Assumpção MEOA, Visintin JA. Oestrogen and progesterone receptor gene expression in canine oocytes and cumulus cells throughout the oestrous cycle. Reprod Domest Anim 2010; 44 Suppl 2:239-42. [PMID: 19754577 DOI: 10.1111/j.1439-0531.2009.01422.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of this research was to analyze oestrogen receptor-alpha (ERalpha), ERbeta and progesterone receptor (PR) gene expression in the canine oocyte and cumulus cells throughout the oestrous cycle. Ovaries from 38 bitches were recovered after ovariohysterectomy and sliced. The phase of the oestrous cycle was determined by vaginal cytology, vaginoscopy and serum hormonal measurements. Oocytes were mechanically denuded by repeated pipetting. For each phase of the cycle, a sample was composed by a pool of 50 oocytes (sample number: prooestrus = 3, oestrus = 8, dioestrus = 5 and anoestrus = 5) or a pool of cumulus cells (prooestrus = 4, oestrus = 7, dioestrus = 4 and anoestrus = 6). Oocyte and cumulus cells' total RNA was isolated and reverse transcription was conducted to perform real-time PCR. Oestrogen receptor-alpha was expressed throughout the cycle in the oocyte (33.33%, 25.0%, 20.0% and 60.0% for prooestrus, oestrus, dioestrus and anoestrus, respectively) and cumulus cells (50.0%, 47.14%, 25.0% and 66.67% for prooestrus, oestrus, dioestrus and anoestrus, respectively). In the oocyte, the ERbeta was also expressed in all phases of the cycle (33.33%, 50.0%, 20.0% and 60.0% for prooestrus, oestrus, dioestrus and anoestrus, respectively), whereas in cumulus cells, ERbeta was only expressed during prooestrus (50%) and oestrus (14.29%). Interestingly, while the oocyte PR was not detected in any phase of the cycle, this receptor was expressed during prooestrus (50%), oestrus (42.86%) and anoestrus (16.67%) in cumulus cells. In conclusion, canine oocytes express ERalpha and ERbeta throughout the oestrous cycle, however, there is a lack of PR expression in all these phases. Moreover, in cumulus cells, only ERalpha was expressed throughout the oestrous cycle.
Collapse
Affiliation(s)
- J S A Gonçalves
- Laboratory of In Vitro Fertilization, Cloning and Animal Transgenesis, Department of Animal Reproduction, School of Veterinary Medicine and Animal Sciences, University of Sao Paulo, Sao Paulo, Brazil.
| | | | | | | | | | | | | |
Collapse
|
33
|
Martins LF, Milazzotto MP, Feitosa WB, Coutinho ARS, Simoes R, Marques MG, Assumpcao MEOA, Visintin JA. Sequence variation of the alpha-lactalbumin gene in Holstein and Nellore cows. Anim Biotechnol 2008; 19:194-8. [PMID: 18607792 DOI: 10.1080/10495390802058939] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The alpha-lactalbumin is a subunit of lactose-synthase, an enzyme responsible for lactose production, a disaccharide that influences milk production. Sequence variations of bovine alpha -lactalbumin have been associated with differences in milk yield. This study aimed to analyze allelic frequency differences at position - 1689 (g. A > G) and + 15 (g. A > G) of the alpha-lactalbumin gene in Holstein (Bos taurus) and Nellore (Bos indicus) cows. Blood samples were analyzed from 34 Holstein, 104 Nellore, and 99 Dairy Nellore cows using PCR-RFLP. The different RFLP patterns were sequenced and a novel sequence variation on nucleotide - 46 was identified. An adenine at this position was designated as the A allele and a guanine was designated B allele. The frequencies of alleles A - 1689, A - 46, and A + 15 differed between Holstein and both Nellore breeds. The results show that differences in alpha-lactalbumin allelic variants in the 5'-flanking and the 5'-UTR region might be associated with differences in milk production between Holstein cows and cows from Nellore breeds. However, the lack of difference between Nellore and Dairy Nellore suggests that other sequence variantions that regulate milk production might be responsible for the selection of Dairy Nellore cows with superior milk production.
Collapse
Affiliation(s)
- L F Martins
- Department of Animal Reproduction, Faculty of Veterinary Medicine, University of Sao Paulo, Rua Orlando Marques de Paiva, Sao Paulo-SP/Brazil
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Milazzotto MP, Feitosa WB, Coutinho ARS, Goissis MD, Oliveira VP, Assumpção MEOA, Visintin JA. Effect of Chemical or Electrical Activation of Bovine Oocytes on Blastocyst Development and Quality. Reprod Domest Anim 2007; 43:319-322. [DOI: 10.1111/j.1439-0531.2007.00900.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
35
|
Goissis MD, Caetano HVA, Marques MG, de Barros FRO, Feitosa WB, Milazzotto MP, Binelli M, Assumpção MEOA, Visintin JA. Effects of Serum Deprivation and Cycloheximide on Cell Cycle of Low and High Passage Porcine Fetal Fibroblasts. Reprod Domest Anim 2007; 42:660-3. [DOI: 10.1111/j.1439-0531.2006.00839.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
36
|
Grisolia AB, Moreno VR, Campagnari F, Milazzotto MP, Garcia JF, Adania CH, Souza EB. Genetic diversity of microsatellite loci in Leopardus pardalis, Leopardus wiedii and Leopardus tigrinus. Genet Mol Res 2007; 6:382-9. [PMID: 17624861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The microsatellite loci FCA045, FCA077, FCA008, and FCA096 are highly variable molecular markers which were used to determine the genetic diversity in 148 captive Leopardus sp. The PCR-amplified products of microsatellite loci were characterized in ABI Prism 310 Genetic Analyzer. Allele numbers, heterozygosity, polymorphism information content, exclusive allele number, and shared alleles were calculated. Sixty-five alleles were found and their sizes ranged from 116 to 216 bp in four microsatellite loci. The heterozygosity ranged from 0.36 to 0.81 in Leopardus pardalis, 0.57 to 0.67 in L. tigrinus and 0.80 to 0.92 in L. wiedii. The polymorphism information content was from 0.80 to 0.88 in L. pardalis, 0.76 to 0.88 in L. tigrinus and 0.77 to 0.90 in L. wiedii. The margay (L. wiedii) showed the highest index of polymorphism among the three species in this study. These results imply that microsatellite DNA markers can help in the study of the genetic diversity of Leopardus specimens.
Collapse
Affiliation(s)
- A B Grisolia
- Departamento de Genética, Instituto de Biociências, UNESP, Botucatu, SP, Brasil.
| | | | | | | | | | | | | |
Collapse
|
37
|
Marques MG, Nicacio AC, de Oliveira VP, Nascimento AB, Caetano HVA, Mendes CM, Mello MRB, Milazzotto MP, Assumpção MEOD, Visintin JA. In vitro maturation of pig oocytes with different media, hormone and meiosis inhibitors. Anim Reprod Sci 2007; 97:375-81. [PMID: 16597488 DOI: 10.1016/j.anireprosci.2006.02.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2005] [Revised: 02/15/2006] [Accepted: 02/27/2006] [Indexed: 11/29/2022]
Abstract
This study evaluated in vitro maturation of pig oocytes in two maturation media (TCM199 and NCSU23) supplemented with 10% porcine follicular fluid (pFF) or 0.1% polyvinyl alcohol (PVA) and four hormonal treatments. The best media was then used to evaluate the effect of reversible meiosis inhibitors cycloheximide (5 microgram/ml) [DOSAGE ERROR CORRECTED]and butyrolactone I (12.5M) on the maturation of pig oocytes was evaluated. After maturation for 44 h, the oocytes were fixed, stained, and examined under epifluorescence microscopy. The comparison of the proportion of oocytes in metaphase II revealed that hormonal treatment 2(incubation for 22 h - 10 ng EGF/ml, 10 IU hCG/ml and 10 IU eCG/ml, followed by incubation for 22 h - 10 ng EGF/ml) presented higher repeatability percentages: TCM+ PVA (54.5% - 61/112); TCM+ pFF (65.0% - 63/97);NCSU23 + PVA (54.6% - 65/119), and NCSU23 + pFF (58.1% - 61/105). The comparison of maturation media showed that TCM199 presented more constant results than NCSU23. Regarding supplementation with pFF or PVA, TCM199 with pFF presented better results. The comparison between butyrolactone I and cycloheximide demonstrated that both drugs effectively inhibited meiosis; however, only cycloheximide presented metaphase II percentages similar to the control (70.29% and 75.49%, respectively). In conclusion, it is recommended the use of TCM199 medium supplemented with pFF and hormonal treatment with 10 ng EGF/ml, 10 UI hCG/mland 10 UI eCG/ml during the first 22 h and more 22 h with 10 ng EGF/ml for the pig oocytes maturation. Butyrolactone I and cycloheximide effectively arrested/resumpted maturation; however, the oocytes percentages in metaphase II was the same for both cycloheximide and the control groups.
Collapse
Affiliation(s)
- Mariana Groke Marques
- Department of Animal Reproduction, Faculty of Veterinary Medicine, University of São Paulo, Brazil.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Nicacio AC, Assumpção MEOD, Caetano HVDA, Gerger RPDC, Marques MG, Mello MRB, Mendes CM, Milazzotto MP, Oliveira VP, Simões R, Yamada C, Visintin JA. Criopreservação e desenvolvimento in vitro de embriões bovinos. Braz J Vet Res Anim Sci 2006. [DOI: 10.11606/issn.1678-4456.bjvras.2006.26517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
O objetivo deste trabalho foi estudar a remoção do crioprotetor, em duas ou três etapas, em embriões bovinos produzidos in vitro após a congelação em vapor de Nirtogênio. Blastocistos expandidos (1329) foram mantidos em co-cultivo (controle) ou criopreservados em 3 protocolos de congelação em vapor de nitrogênio. Os embriões foram equilibrados na solução de 10% de EG por 10 minutos e em 17%, 22% ou 28% de EG por 30 segundos. Após o envase, as palhetas foram mantidas em vapor de nitrogênio por 2 minutos e armazenadas em nitrogênio líquido. Após a descongelação, os crioprotetores foram diluídos em duas etapas, usando 0,3M de sacarose e solução isotônica ou em três etapas usando 0,3M de sacarose + 10% de EG; 0,3M de sacarose e solução isotônica. Os embriões foram co-cultivados com células da granulosa, avaliando as taxas de re-expansão após 24 horas e de eclosão após 24, 48, 72 e 96 horas. Para os grupos congelados no vapor e diluição do crioprotetor em duas etapas, as taxas de eclosão foram de 1,94; 11,88 e 6,06% para EG17, EG22 e EG28, respectivamente. Já para os grupos com diluição do crioprotetor em três etapas, as taxas de eclosão foram de 4,67; 9,90 e 10,78% para EG17, EG22 e EG28, respectivamente.
Collapse
|
39
|
Santos SEC, Murua Escobar H, Sider LH, Winkler S, Aoki SM, Milazzotto MP, Campagnari F, Vannucchi CI, Bullerdiek J, Nolte I, Garcia JF. DNA sequence, polymorphism, and mapping of luteinizing hormone receptor fragment (LHCGR) gene in Great Dane dogs. Anim Genet 2004; 35:74-5. [PMID: 14731239 DOI: 10.1111/j.0268-9146.2003.01080.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S E C Santos
- Department of Animal Health and Production, São Paulo State University, Araçatuba, Brazil
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Mello MRB, Caetano HVA, Marques MG, Padilha MS, Garcia JF, Milazzotto MP, Assumpção MEOA, Lima AS, Nicácio AC, Mendes CM, Oliveira VP, Visintin JA. Production of a cloned calf from a fetal fibroblast cell line. Braz J Med Biol Res 2003; 36:1485-9. [PMID: 14576903 DOI: 10.1590/s0100-879x2003001100006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study examined the in vitro and in vivo development of bovine nuclear-transferred embryos. A bovine fetal fibroblast culture was established and used as nucleus donor. Slaughterhouse oocytes were matured in vitro for 18 h before enucleation. Enucleated oocytes were fused with fetal fibroblasts with an electric stimulus and treated with cytochalasin D and cycloheximide for 1 h followed by cycloheximide alone for 4 h. Reconstructed embryos were cultured for 7-9 days and those which developed to blastocysts were transferred to recipient cows. Of 191 enucleated oocytes, 83 (43.5%) were successfully fused and 24 (28.9%) developed to blastocysts. Eighteen freshly cloned blastocysts were transferred to 14 recipients, 5 (27.8%) of which were pregnant on day 35 and 3 (16.7%) on day 90. Of the three cows that reached the third trimester, one recipient died of hydrallantois 2 months before term, one aborted fetus was recovered at 8 months of gestation, and one delivered by cesarian section a healthy cloned calf. Today, the cloned calf is 15 months old and presents normal body development (378 kg) and sexual behavior (libido and semen characteristics).
Collapse
Affiliation(s)
- M R B Mello
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária, Universidade de São Paulo, São Paulo, SP, Brasil.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Rahal P, Latronico AC, Kohek MBF, De Lucia RFS, Milazzotto MP, Wheeler MB, Ferraz JBS, Eler JP, Garcia JF. Polymorphisms in the bovine follicle-stimulating hormone receptor gene. Anim Genet 2000. [DOI: 10.1111/j.1365-2052.2000.00604.pp.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
42
|
Rahal P, Latronico AC, Kohek MB, de Lucia RF, Milazzotto MP, Wheeler MB, Ferraz JB, Eler JP, Garcia JF. Polymorphisms in the bovine follicle-stimulating hormone receptor gene. Anim Genet 2000; 31:280-1. [PMID: 11086540 DOI: 10.1046/j.1365-2052.2000.00604.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- P Rahal
- Department of Animal Health and Production, UNESP, Araçatuba, Brazil
| | | | | | | | | | | | | | | | | |
Collapse
|